Allows players to queue research, view research by required science packs, and automatically queue prerequisites for desired tech. Special thanks to Chrisgbk for 0.16 update.
Some research (oil scanning) in the "ribbon maze" mod uses multiple icons overlayed. These technologies crash the text mode of the research queue. I think the problem is in the gui-style creation of Research queue, where it does this:
filename = tech.icon,
priority = "extra-high-no-scale",
width = get_size(tech),
height = get_size(tech),
x = 0,
y = 0
tech.icon will be nil; the technology will have tech.icons instead. I think this causes the gui style not to be created.